Question 1
During each second of braking, an automobile slows by about 10 miles per hour.

a. Plot the points (0, 60) and (6, 0). Draw a line through the points.

Keyboard Instructions
Initial graph state
The horizontal axis goes from -0.8 to 10.4 with ticks spaced every 1 unit(s).
The vertical axis goes from -8 to 75.4 with ticks spaced every 10 unit(s).

Respuesta :

From the information given, the linear function is modeled by:

[tex]y = -10x + 60, 0 \leq x \leq 6[/tex]

  • It's graph is sketched at the end of this answer.

A linear function is modeled by:

[tex]y = mx + b[/tex]

In which:

  • m is the slope, which is the rate of change.
  • b is the y-intercept, which is the value of y when x = 0.

In this problem, it goes through point (0,60), hence when [tex]x = 0, y = 60[/tex], meaning that the y-intercept is [tex]b = 60[/tex].

It also goes through point (6,0), and considering the slope is given by the change in y divided by change in x:

[tex]m = \frac{0 - 60}{6 - 0} = -10[/tex]

Hence, the equation is:

[tex]y = -10x + 60[/tex]

After the car stops, the velocity will not be negative, hence the function is valid only for x = 0 to x = 6, that is:

[tex]y = -10x + 60, 0 \leq x \leq 6[/tex]

At the end, the graph is sketched.

A similar problem is given at https://brainly.com/question/16302622

Ver imagen joaobezerra